Secondary or storage battery.



PATENTED SEPT. 6, 1904.

I 5. B TTERi ES C. POTTER. SECONDARY OR STORAGE BATTERY.

APPLICATION FILED DEO.21,1903. NI) MODEL.

Ghwzu for No. 769,403. D

* UNITED STATES n Alh hl l.

l *QP Patented September 6, 1904.

PATENT OFFICE.

SECONDARY OR STORAGE BATTERY,

SPECIFIGATION forming part of Letters Patent No. 769,403, datedSeptember 6, 1904.

I Application filed December 21, 1903. Serial No, 186,077. (No model.)

TmaIZZ whom, it may concern.-

Be' it known that I, CARROLL POTTER, acitizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia 5and State of Pennsylvania, have invented certain new and usefulImprovements in Secondary or Storage Batteries, of which the follow ingis a specification.

One object of the present invention is to I provide for guarding againstaccidental detachment of plate-lugs from their connectingstrap.

/ Another object of the invention is to. facilifate the operation ofconnecting the plate,-

lugs and their connecting-strap.

scribed and finally claimed.

The nature, characteristic features, and scope of my invention will bemore fully understood from the following description, taken inconnection with the accompanying drawings, forming part hereof, and inwhich Figure 1 is a side View, partly in section, of a strap embodyingfeatures of the invention. Fig. 2 is a side view of a lug embodyingfeatures of the, 'nvention. Fig. 3 is a side view 4 of a plate h ving alug and strap connected in accordance with the invention, and Fig. 4 isan end view of a number of plates connected with a strap in accordancewith the invention.

In the drawings, 1 is a connecting-strap, and

2 represents plate-lugs. 7 3 represents bridge-pieces which connect thelugs beneath the plate-strap. The bridgepieces obviously impartmechanical strength 5 to the structure and prevent the lugs from workingloose or becoming detached where they are connected with the strap. Thebest means known to me at this time for making the described structurewill now be explained.

The lugs 2 are provided with lateral projections L, having beveled orchamfered ends.

Two of these projections are placed in alinement and are burnedtogether, thus making the bridge-piece 3. The fact that the ends arechamfered or beveled facilities this burning and puddling. The strap isprovided with beveled or chamfered openings 5, through which the lugs 2are inserted and then burned and puddled, so as to connect them.

It will be obvious to those skilled in the art to which my inventionappertains that modifications may be made in detail without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and arrangement of parts hereinabove set forth, andillustrated in the accompanying drawings; but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. The combination of a connecting-strap, plate-lugs joined thereto anddepending therefrom, and bridgezpieces, interposed between and attachedTo the lugs to-relieve the strain at the joints of the lugs .with thestraps, substantially as described.

2. The combination with a connecting-strap of plate-lugs having integrallateral projections burned together to constitute bridgepieces,substantially as described.

3. The combination of a connecting-strap, and plate-lugs burned theretoand provided with lateral projections burned together to constitutebridge-pieces, substantially as described.

4:- The combination of a connecting-strap having chamfered openings, andplate-lugs adapted to said openings and provided with a lateralprojections having beveled ends, substantially as described. 7 g

In testimony whereof I have hereunto signed my name.

CARROLL POTTER.-

In presence of W. J. JACKSON, J AS. A. RICHMOND.

